Home nation Australia became the first team to qualify for the quarterfinals at the ATP Cup after they swept past a tough Canada team 3-0 in Brisbane on Sunday.

Nick Kyrgios went down with a back injury but John Millman filled in and beat up on youngster Felix Auger-Aliassime 6-4, 6-2.

“It’s always difficult, a late call up, but it doesn’t get much easier in a difficult circumstance than when you get to play here in Brisbane, a place where you’re familiar with the court and the surroundings and you know that you’re going to have a vocal crowd in your corner,” Millman said.

It was then Alex De Minaur’s chance to clinch and he did just that edging Denis Shapovalov 6-7(6), 6-4, 6-2.

“I managed to turn things around, get back into a positive mindset, get my energy back,” said De Minaur. “I think it’s all energy. It’s good that in the back of my head I know that all the hard work I’ve put in in the pre-season, so I know that my body’s ready to keep on going for however long it takes.”

In Sydney, Grigor Dimitrov helped Bulgaria beat Moldova 2-1 and Great Britain stayed alive with a win over Belgium.

Over in Perth, the U.S. was eliminated by Russia who rolled past the Americans 3-0. Daniil Medvedev cruised past John Isner 6-3, 6-1 while Karen Khachanov came back to beat Taylor Fritz 3-6, 7-5, 6-1.

“I think I played great,” said Medvedev. “To beat John with such score is a really great achievement. I knew before the match I just had to try return as much as possible. It worked out well. On my serve, I had only one tight game, missed some first serves. If not, I think the match was under my control. So I’m really happy for the team that we got the important win.

“I was really expecting some maybe three tie-breaks or something like that. I played Opelka last year in three tie-breaks. I played Raonic with tiebreaks. I’m really happy that I managed to kind of read his serve, returned really well and win without a tiebreak.”

Isner managed just four games.

“I got my ass kicked out there,” said Isner. “He did what he does well, which is make a lot of balls, that’s kind of how he was playing last year. I wasn’t even close tonight. Generally, with my game, I can keep matches close and make it depend on a few points here or there, but that wasn’t the case tonight… I didn’t quite serve as well as I needed to, there’s no doubt. I can certainly serve better.”